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Finding the Fourth Proportional to 500,661.76, 751,089.31 and 163,611.50

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Solution

The fourth proportional to 500,661.76, 751,089.31 and 163,611.50 is: 245,448.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,661.76 : 751,089.31 = 163,611.50 : x
  2. Step 2: Convert to fraction form
    500,661.76/751,089.31 = 163,611.50/x
  3. Step 3: Cross multiply
    500,661.76x = 751,089.31 × 163,611.50
  4. Step 4: Simplify right side
    500,661.76x = 122,886,844,478.59
  5. Step 5: Solve for x
    x = 122,886,844,478.59/500,661.76
  6. Step 6: Final answer
    x = 245,448.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.